Permit Record

Alteration Residential

1918 Mason St, San Francisco, Ca, 94133

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Not in source
Owner
Not in source
Architect
Not in source
Engineer
Not in source
Contractor license
Not in source
Building & lot · PLUTO
Building class
Not in source
Zoning district
Not in source
Lot area
Not in source
Year built
Not in source
Units (total)
Not in source
Units (residential)
Not in source
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
0090 015
Climate zone (IECC)
3C
Roof area (est.)
Not derivable — no building-size signal for this permit
HVAC tonnage (est.)
Not derivable — no building-size signal for this permit
Building type
Not in source
Building subtype
Not in source
Geocode & dates
Coordinates
37.8013, -122.4125
Geocode confidence
95%
Geocode source
Not in source
Issued
Sep 25, 2019
Applied
Sep 25, 2019
Work class
Not in source
Description
Source description

street space only

Status
Current status
issued
Source status
issued
Provenance
First seen by PermitCore
May 2, 2026 · 23:52 UTC
Last seen
May 12, 2026 · 00:05 UTC
Last changed
May 2, 2026 · 23:52 UTC

Open in San Francisco source →

Data-quality checks1 of 12 flagged

1 of 12 data-quality checks flagged on this permit. Detail below.

Valuation is placeholder
valuation_usd_is_placeholder

valuation_usd matched a known placeholder (often 0 or 1) used by the source when the real valuation wasn't reported.

Checks not flagged

  • Geocode out of bounds
  • Geocode is sentinel
  • Issued date in the future
  • Issued date parse bug
  • Issued date is placeholder
  • Commercial units is placeholder
  • Residential units out of bounds
  • Residential units is placeholder
  • Total units out of bounds
  • Total units is placeholder
  • Valuation out of bounds
Project timeline at this parcel

20 permits at this parcel (parcel 0090 015) · through Sep 25, 2019

  1. Sep 25, 2019This permitAlteration Residential · Issued
  2. Nov 26, 20181532664294192Alteration Residential · Finaled$85,000
  3. Nov 26, 20181532666348206Alteration Residential · Finaled$85,000
  4. Mar 8, 2016141518558440Alteration Residential · Issued
  5. Date not usable in source683231275692Alteration Residential · Expired$1,500
  6. Date not usable in source86403258440Alteration Residential · Finaled$4,500
  7. Date not usable in source343904275690Alteration Residential · Expired$10,000
  8. Date not usable in source328721348206Alteration Residential · Finaled$100
  9. Date not usable in source326740275691Alteration Residential · Expired$1,000
  10. Date not usable in source86235558440Alteration Residential · Finaled$7,350
  11. Date not usable in source86236958440Alteration Residential · Finaled$8,200
  12. Date not usable in source294270348206Alteration Residential · Expired$500
  13. Date not usable in source86232458440Alteration Residential · Finaled$59,500
  14. Date not usable in source86232558440Alteration Residential · Expired$3,000
  15. Date not in source1235086294192Alteration Residential · Cancelled$100
  16. Date not in source1235087275690Alteration Residential · Cancelled$100
  17. Date not in source1235090348206Alteration Residential · Cancelled$100
  18. Date not in source1235089275693Alteration Residential · Cancelled$100
  19. Date not in source1235088275692Alteration Residential · Cancelled$100
  20. Date not in source1451672294192Alteration Residential · Withdrawn

Full permit history at this parcel · as of Jul 9, 2026.

Developer details
Permit #
1569507275690
Canonical ID
6:1569507275690
Source permit ID
1569507275690
Browse San Francisco permits in the Market Explorer →Pull this permit via /v1/permits →